MEXICO CITY, Mexico – Authorities have confirmed that a deadly mass shooting that left one Canadian tourist dead and 13 other people injured at Mexico’s iconic Teotihuacan archaeological site was carefully planned days in advance, with evidence pointing to radicalization inspired by a notorious 1990s United States massacre. The attack, which unfolded on Monday at the UNESCO World Heritage site, comes just weeks before Mexico hosts multiple matches for the 2026 FIFA World Cup, prompting immediate calls for sweeping security overhauls at tourist destinations nationwide.